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98 trans am bone stock with 4000 stall hpt help!!!

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Old 06-04-2011, 10:06 AM
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Default 98 trans am bone stock with 4000 stall hpt help!!!

Can someone please help me tune this. It's a bone stock car with 2.73 gear and it's not shifting right. Could someone tell me what I need to change or post a tune for me to load in it. This is my first attempt at this stuff so any and all help would be great!!!!!
Old 06-04-2011, 10:55 AM
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when i installed my 3600 converter my car had a problem with shifting early only when you were on the gas. almost felt like it started missing real bad and then shifted way too soon. the cure for mine was to delete torque management. hope this helps you.
Old 06-04-2011, 11:35 AM
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Why did you put a 4000 stall in bone stock car?
Old 06-04-2011, 12:03 PM
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It's a friends car and mods are coming just broke the trans and while it was out went ahead and had it built and put the converter in. Just want to get it shifting before we go any further. And thanks I will try that. I think I need to lower the shift points and raise the rev limiter some cause it just stays on the limiter on the 1-2 shifts until you let out of the gas
Old 06-04-2011, 12:04 PM
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Also what do you guys bump the line pressure to safetly
Old 06-04-2011, 05:28 PM
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Bump

This is my car. Any help would be greatly appreciated.
Old 06-04-2011, 09:25 PM
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Most agree on using the upshift modifiers for the pressure increases for shift feel. Shift speed will need to reduced because of the increased converter flare over stock at WOT.
Old 06-04-2011, 09:37 PM
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I had the same problem with my 98 camaro when it put a 3200 stall in with just bolt ons. but it was only hitting the rev. at the top of third. I took it to too tuner and never got it perfect. They kept telling me it was harder to tune the 98 computers cause they are defferent from the rest of the years. I had to bring the shift speed down and the shift point up.
Old 06-04-2011, 09:48 PM
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Originally Posted by 71ANTICARB
Why did you put a 4000 stall in bone stock car?
Would you like to explain why you would not put a 4000 In a stock car?
I'm going to assume you think some lazy 3200 would suit It better, amiright?

Good choice on converter size.
Old 06-04-2011, 10:18 PM
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I agree with the above post just didn't wanna start I fight when I need help lol. I will try the above suggestions in the morning and post the results. Like I said I'm completely new at this tuning and all your info has been great
Old 06-05-2011, 08:28 AM
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There isnt any thing lazy about a 3200 stall i put one in bolt on only car and it drop 1/8 time by 6 tenths. from 8.54 to 7.92. Not to say a 4000 wouldnt do better. i think a 4000 was a good choice
Old 06-05-2011, 09:01 AM
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I didn't saying anything about the choice just simply ask why. I guess the old adage about assuming still applies.
Old 06-05-2011, 09:14 AM
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And don't worry bout startin a fight cause there will always be someone making a smartass unhelpful assuming comment.



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